PF
What code PF means on a LG washing machines, what causes it, and which part to check first.
● SEVERITY: MEDIUM
LG PF means: Power failure mains power was interrupted during the cycle. The documented cause is: The machine detected that mains power was lost and then restored during a cycle. PF is not a machine fault it is a record of an interrupted power supply.
What PF means
Power failure mains power was interrupted during the cycle
The display shows PF and the machine stops until the fault is cleared.
What the technical documentation says
Causes documented in the technical source published by whitegoodshelp.co.uk
| DOCUMENTED CAUSE OR CHECK |
|---|
| The machine detected that mains power was lost and then restored during a cycle |
| PF is not a machine fault it is a record of an interrupted power supply |
Replacement parts
Tools you'll need
Before you open anything
Unplug the machine and close the water tap before removing any panel. Water and mains electricity sit centimetres apart inside a washing machine. If the drum still holds water, drain it from the filter first — it can be scalding.
What to check, in order
From the quickest check to the one that needs a technician.

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Frequently asked questions
What does PF mean on a LG?
Power failure mains power was interrupted during the cycle The documented cause is: The machine detected that mains power was lost and then restored during a cycle. PF is not a machine fault it is a record of an interrupted power supply.
Can I fix PF myself?
It depends on the part involved: The machine detected that mains power was lost and then restored during a cycle. PF is not a machine fault it is a record of an interrupted power supply. Clearing a filter or straightening a hose is within reach of anyone; anything behind a panel means mains electricity and water together — that is a job for a technician.
Does LG use other codes on this appliance?
Yes: we document 23 other codes for LG on this washing machines. They are listed at the bottom of this page, each with its own meaning.
Does the same code mean the same thing on other brands?
Often not. The same two characters can point to completely different faults depending on the manufacturer — always check the page for your own brand.

